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Crosslinked foamed polyethylene plate and preparation method thereof

A technology of polyethylene and polyethylene powder, which is applied in the field of cross-linked foamed polyethylene sheet and its preparation, can solve the problems of lack of wear resistance and anti-aging, limit the use range and use time of polyethylene sheet, and achieve production cost Low, easy to promote and use, prolong the effect of service life

Inactive Publication Date: 2019-05-31
滁州市超顺装备科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing polyethylene sheet does not have the ability of wear resistance and aging resistance, thus limiting the use range and service time of polyethylene sheet

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Example 1: A cross-linked foamed polyethylene sheet, including raw materials of the following weight kg: 88kg of polyethylene powder, 8kg of azodicarbonamide, 2kg of tungsten carbide powder, 1kg of tetrafluoroethylene, 1kg of silicon nitride, polymer ceramics Composite material powder 3kg, benzoic acid (2,2,6,6-tetramethyl-4-hydroxypiperidine) ester 0.2kg, nitrotris[acetic acid (2,2,6,6-tetramethyl-4- Hydroxypiperidine) ester] 0.1kg, phenyl hydroxybenzoate 0.5kg, 2-(2ˊ-hydroxy-5ˊ-methylphenyl)benzotriazole 0.3kg, talc 12kg, mica powder 8kg, kaolin 9kg, 1kg of trichlorofluoromethane and 2kg of vinyl silane coupling agent;

[0021] The preparation method includes the following steps:

[0022] S1. Weigh the raw materials in proportion;

[0023] S2. The raw materials are pulverized into a powder with a diameter of 200um using an ultrafine pulverizer and mixed uniformly in a high-speed mixer at a speed of 1400 rpm / min, and the uniformly mixed materials are transported to the gran...

Embodiment 2

[0026] Example 2: A cross-linked foamed polyethylene sheet, including raw materials of the following weight kg: 90 kg of polyethylene powder, 9 kg of azodicarbonamide, 2 kg of tungsten carbide powder, 1 kg of tetrafluoroethylene, 1 kg of silicon nitride, polymer ceramics Composite material powder 4kg, benzoic acid (2,2,6,6-tetramethyl-4-hydroxypiperidine) ester 0.3kg, nitrotris[acetic acid (2,2,6,6-tetramethyl-4- Hydroxypiperidine) ester] 0.2kg, phenyl hydroxybenzoate 0.6kg, 2-(2ˊ-hydroxy-5ˊ-methylphenyl)benzotriazole 0.4kg, talc 13kg, mica powder 9kg, kaolin 10kg, 1kg of trichlorofluoromethane and 2kg of vinyl silane coupling agent;

[0027] The preparation method includes the following steps:

[0028] S1. Weigh the raw materials in proportion;

[0029] S2. The raw materials are pulverized into a powder with a diameter of 200um using an ultrafine pulverizer and mixed uniformly in a high-speed mixer at a speed of 1400 rpm / min, and the uniformly mixed materials are transported to th...

Embodiment 3

[0032] Example 3: A cross-linked foamed polyethylene sheet, including raw materials of the following weight kg: 91 kg of polyethylene powder, 9 kg of azodicarbonamide, 2 kg of tungsten carbide powder, 2 kg of tetrafluoroethylene, 1 kg of silicon nitride, polymer ceramics Composite material powder 4kg, benzoic acid (2,2,6,6-tetramethyl-4-hydroxypiperidine) ester 0.4kg, nitrotris[acetic acid (2,2,6,6-tetramethyl-4- Hydroxypiperidine) ester] 0.2kg, phenyl hydroxybenzoate 0.6kg, 2-(2ˊ-hydroxy-5ˊ-methylphenyl)benzotriazole 0.5kg, talc 13kg, mica powder 10kg, kaolin 11kg, 1kg of trichlorofluoromethane and 2kg of vinyl silane coupling agent;

[0033] The preparation method includes the following steps:

[0034] S1. Weigh the raw materials in proportion;

[0035] S2. The raw materials are pulverized into a powder with a diameter of 200um using an ultrafine pulverizer and mixed uniformly in a high-speed mixer at a speed of 1400 rpm / min, and the uniformly mixed materials are transported to t...

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PUM

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Abstract

The invention discloses a crosslinked foamed polyethylene plate and a preparation method thereof. The crosslinked foamed polyethylene plate comprises polyethylene powder, azodicarbonamide, tungsten carbide powder, tetrafluoroethylene, silicon nitride, polymerized ceramic composite material powder, benzoic acid(2, 2, 6, 6-tetramethyl-4-hydroxypiperidine) ester, nitrotri[acetic acid(2, 2, 6, 6-tetramethyl-4-hydroxypiperidine) ester] and hydroxy phenyl benzoate. The preparation method includes following steps: S1, weighing raw materials; S2, smashing the raw materials, well mixing in a high-speedmixer, and granulating; S3, fully adding a raw material obtained in a granulator into a single-screw extruder, and extruding to obtain a sheet; S4, allowing the sheet to be in cross-linking reactionthrough high-energy ray irradiation, annealing in a vacuum oven, and foaming in a horizontal foaming furnace to obtain the crosslinked foamed polyethylene plate. The crosslinked foamed polyethylene plate is simple in production process, low in production cost and convenient for wide-range popularization and use.

Description

Technical field [0001] The invention relates to the technical field of polyethylene sheet production, in particular to a cross-linked foamed polyethylene sheet and a preparation method thereof. Background technique [0002] Polyethylene sheet is divided into high-pressure LDPE and low-pressure HDPE. It has the advantages of non-toxic, smooth surface, flatness, corrosion resistance, excellent electrical insulation performance, and good low-temperature performance. It is widely used in chemical, electric power and other industries. HDPE sheet can also be used as engineering Plastics are used in machinery and chemical equipment. The existing polyethylene sheet does not have the ability of wear resistance and aging resistance, thus limiting the use range and use time of the polyethylene sheet. Therefore, we propose a cross-linked foamed polyethylene sheet and its preparation method to solve the above problems. Summary of the invention [0003] The purpose of the present invention is...

Claims

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Application Information

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IPC IPC(8): C08L23/06C08K13/02C08K3/14C08K5/02C08K3/34C08K5/3435C08K5/134C08K5/3475C08J9/14
Inventor 许永超
Owner 滁州市超顺装备科技有限公司
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